ML17331B329
| ML17331B329 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 03/29/1994 |
| From: | INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | |
| Shared Package | |
| ML17331B327 | List: |
| References | |
| NUDOCS 9404040079 | |
| Download: ML17331B329 (25) | |
Text
ATTACHMENT1toAEP:NRC:1169BEXISTINGTECHNICALSPECIFICATIONPAGESMARKED-UPTOREFLECTPROPOSEDCHANGES9404040079940529PDR'ADOCK05000515IPDR 4,SSEMS34.7.BCYCLESAFEVALVESLIMITINGCONDITIONFOROPERATION3.7.1.1AllmainsteamlinecodesafetyvalvesassociatedwitheachsteamgeneratorshallbeOPERABLE.ACTION'.With4reactorcoolantloopsandassociatedsteamgeneratorsinoperationandwithoneormoremainsteamlinecodesafetvalvesinoperable,operationinMODES1,2and3nproceedprovided,thatwithin4hours,eithertheinoperablevalveisrestoredtoOPERABLEstatusorthePowerRangeNeutronFluxHighSetpointtripisreducedperTable3.7-1;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.b.With3reactorcoolantloopsandassociatedsteamgeneratorsin'perationandwithoneormoremainsteamlinecodesafetyvalvesassociatedwithanoperatingloopinoperable,operationinMODE3mayproceedprovided,thatwithin4hours,eithertheinoperablevalveisrestoredtoOPERABLEstatusorthereactortripbreakersareopened;otherwise,beinCOLDSHUTDOWNwithinthenext30hours.c.TheprovisionsofSpecification3.0.4arenotapplicable.SURVEILLANCEREUIREMENTS4.7.1,1No=addi~na~~eiLLance~quirements~th~han~ose-requipped-by-~eci-f-ication-4-OM;5~~li~COdLa55~~gA.I~5h5l(hn~5~5$rN-~p~~gLg~q~~~~~if'~$(c+(g~Qeo<5olh)cA~(+[IAM+Q~Q.7-j.+kR5AM+OŽION5Q~OJlJLQ~lg~COOKNUCLEARPLANT-UNIT1AMENDMENTNO.444,].64 na.BVŽlphoBV16oiBV-2PdoBV-0g'sSV-3$065paig$0CSpeigI$075paig$075psigiOQ5paiglgl.hÃc~16in.16in.16in.16in.16in.'.~iII*Thelltsettngpressureshallaorresp9pdtoaabientoonditionaoCthevalveatnoaina1operatingtewperatureandpressure.'is(a'...<<A.
m~teye7V%c-TheOPQAIILZ.YoftheaaronstealLinecodesaf~syvavesensuresthatthesecondarysysssapressurevillbeLimitedtovithinitsdesignpressureofL085psigdurings4mosssevereanticipatedsysseaopera--'onalranskens.Theaaxi~relievingcayacityisassociatedv'hs~binetiyfroaLOOiRATH'QaLSLLRNEkcoincidentvithanassuaged'.ossofcondenserheatsink<i.~.,nosteaabypasstoshecondenser).ThesyecifiedvalveliftsettingsancLrelievingcayacis'esareinaccordancevithsherequireaantsofSectionlZZofsheAS'ailerandPressureCode,1971Edition.Thetotalrelievingcapacityforallvalvesonaoshesternes517,153,l00lba/hrvhichisayyroxhaately12'ercentofthetotalsecondarysternflovof14,110,000lbe/hrat100%RATEDTHERMALPO4UL.Aai~ot2OPXRAILXsafetyvalvesyeroyerabL~ssakegeneratorensuresshatsufficiensrelievingcayacisyisavailLefortheallovableTHERthLK%ELreasrictioninTable3.7-1.CSTARTUPand/orPOSEOPERATZMisallovablevishsafetyvalinoyerabLevishinsheLimitationsofsheACTINrequirasentsonthebasisofthereductiont.nsecondarysystem%ste48flovandKR%.PSSTrepulsedbythereducedreacortziysettingsofshoPoverRangeNeutronFluxchanneLs.Thoreactortripsetyokntrechcsionsaraderivedon-"efoLlovingbases:For4Loopoyeration4here:52~rechcedreactorstaysetyointinpercentofRATEDTM.¹POSERV~aaxhuanumberofinoyerablesafesyvalvesperssaaaL'ne-1,2or3.XTotaLrelievingcayacityofallsafetyvalvesperstacksline4.284,450lbs/hour.Y~maximarelievingcayacisyofanyonesafetyvalve~d57,690Lbs/hour.(109)PoverRangeNeusronAux-HighTripSetyointfor4Loopoperation.%3/O'J1 INSERTAThesafetyvcBve1sOPERABLEwithaliftsettingof+3%aboutthenoa)nalvalue.Haaever,thesafetyvalveshallberesettothenoa1nalvalue+I%wheneverfeedoutsidethe+1%tolerance.
~~IIII~~~~~~~~~~II~~~~~~~~Ii<~t~~I-I'II~I~~~P~~~I~~~~~~~~I~~~~~~~~~I0~~~~~,~~0~~~~~~~~~~'~.~~~~~~~~~II~~0~~~~
/47DT347~ZPD>NECYCSa~VV<SMIT>NGCONDIIONPOROPERATION3.7.1.1Allma'nsteamlinecodesaetyvalvesassociatedwitheachsteamgeneratorshallbeOPER>ZI~.~CION:a~With4reactorcoolantloopsandassociatedsteamgeneratox'soperationandwithoneormoremainsteamlinecode.safetyvalvesinoperable,operationinMODES1,2and3mayproceedprovided,thatwithin4hours,eithertheinoperablevalveisrestoredtoOPERABLEstatusorthePowerRangeNeutronPluxHighTripSetpointisreducedperTable3.7-1;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTD04%bwithinthefollowing30hours.b.With3reactorcoolantloopsandassoci:atedsteamgeneratorsinoperationandwithoneormoremainsteamlinecodesafetyvalvesassociatedwithanoperatingloopinoperable,operationinMODE3mayproceedprovided,thatwithin4hours,eithertheinoperable~valveisrestoredtoOPERABLEsta~~orthereactortripbreakersareopened;otherwise,beinCOLDSHUTDOVHwithinthenext30hours.c.Thepx'ovisionsofSpecification3.0.4arenotapplicable.4.7.1.1~~~aaal-S~eillaaee~qMaeaea~ebeeea~nrs~equizad-bySpeciM~t~AMscA~~nnS>eeaM*aelooaco~Sr+~a-+<~-'h&ll4a.~eoee<ra~QPg~gS~+~~a.cc.~A~~~(+L,S~(4tcA--4o&'I+4.~PiegQebbs4oowolnlR~Q.7-/.IMoA4aQg~~54~~~~4c+~t4~l~~H~~-ljomMwa~g~~8du%,~M~+)%4ol~~e~.D.C.COOK-U¹T23/47-1~DK2KHO.82
VALVENNBEREII/I~~~TABLE+H<-~7STEANLINESAFETYVALVESPERLOOP314-Lli'TSETTINGORIFICESllEa.SV-1A1065psig16inb.SV-181065psig16In.~c.SV-2hd.SV-28e.SV-31075psig1015psig1085psig16in.216jn.~16ln.~~eAf~saZingpressureshallcorrespondtoNabientconditionsofthevalveatnNIinaloperatingtceparaturn.andpressure.
3/4.5PtERG&WCORECQOLIi6SYSic..S3/4.5.IACCUMULATORSTheOP~QASILITYcfeachRCSaccumulatorensuresthatasufficientvolumeafboratact~aterwillbeimmediatelyforcedintathereactorcarethrougheachcfthecalctlegsfntheeventt.'ieRCSpressurefailsbelowthepressurecftheacc~iators.Thfsinitialsurgecfwaterintathecoreprovidesthefnftfa]coolingmechanfsmduringIar~eRCSpiperuptures.Thelimitsonaccumulatorvolume,baroncancantratianandpressureensurethat,theassumptfansusedforaccumuiatoiinjectfcninthesafetyanalysfsaremet.Theaccumulatorpowercperatectisclatfonvalvesarecansiderecttabe"operatingbypasses"fnthecantex.cfIE"-"-Std.279-1971,whichrequiresOatbypassesofaprotec:ivefunctionberemovedautomaticallywheneverpermissiveconditionsarenotmet.Inactctftfcn,astheseaccumulatorfsolatianvalvesfafltameetsinglefailurecriteria,removalofpowertathevalvesisrequfred.\Thelimitst'oroperatianwithanac=viatorinoperablefcranyreasonexceptanfsolaticnvalveclosedminimizesthetfmeexposureoftheplant,taaLQCAeventcc=urringcancurrentwithfailurecfanadditionalaccumulatorwhichmayresulfnunacceptablepeakciadaingtemperatures.IfaclosectisolationvalveCannotbefmmectiatelyopened,thefullCaaabilityOfCneaC"umuiatarfSnatavailableanctpromptac-ianisrequiredtoplacethereactorinamade~heret:iiscapabilityisnatrequired.3/<.5.2anct3/4.5.3EC~ASUBSYSiB5TheOPLRABILiTYcftwcfndeaenctentBC~Asubsystemsensures'iatsufficientemergencycarec"clingcapaailitywillbeavailableintheeventofaLQCAassumingielesscfonesubsystemthrcugnanysingleaiiurec"nsideraticn.":it.'iersuasystamcaeratfngincanjuncticnwii".eaccumulatorsiscapablecsuaplyingsufffcfentcarecoalfngtalimitthepeakciactdingcamaeratures<<i".h'nacclptableIimiwfarailpcstulatacbreaksizesrangingfranthedoubleenaectbreakofthelargestRCScaidlegpipedownward.Inaaditicn,eachKDsubsystemprovictesIongermcarsc"clingcaaaaiIityinthereef-.aiatfcnmadeduringtheaccident.rec"veryperiod.g$~f(Qg~~~(Z>~c~gg$~ac~a4Qcc(otcs45P~Qla)<MP~..(ioip~cclydepg~ffL'tLll~lfTHC~gPp~+/+g$~(,(\~+u~wi~i<<ci.~+<+ac~perfrg'lCLo~.0.C.CQGK-UNIT283/4~1Amendment.'to.39 4.734.7.34.7.VVX5TheOPERABILITYojthoaainaeoaaLSnocodaaafotyv'alvoaomruroachatthouocondazyIyleaeyroagarovSLLboliaitodtawithin119%ofStadaaignproaaaraef10ISyaS4darin4thaseatsevereanticipatedeyataaoperationaltranaione.TheIaxiaaroliavin4eayacieySaaaaociatadvithacarbinetriyfrol100%RATZDTRXRQL8$XRcaincidanearithanaaa~dlocaofcolIdlInaarhaaeaiokc(S~~~ac44$by$4aaeotheaondanaor)Theepocifiadvalmliftoatein41analrelievingcayacitieaareSnaccordancoviththerapairewaeaofSectionZZXoftheANCIeilarancLPraaaaroCoda,I'571XtKtionThetatbLroLSavin4~StyofallNafotyvtIaon~theaetnalineaSa17~LS3~400lba/hrwhichSaatLaaae195percentoftheaaxiauaIecondaryataaafleerasaat100'ATZOTBLRIALPOMZR.A~~mof2OPXRJOLZsafetyvalvoaParseaaa4onarataronaaraathat,oafficiontrolSovtngcapacitySaavailablofortheaLLevabla.tKStQI.PORKroatziceionSnTable3.7l.5TAR?UPand/orPCICROHSATZONSaallowablearithaafoeyvalvulaS~rabla&thintheLSaitatieeaofthaACTIONzecpairaeontaoathebasisedthateduasiaeiaseeaedatysystaesteadReestet'DRRlfALyOQUtrequiredbytheseducedraaetsrtt'iysatsisgsedtheyeeeryeegeFlueeltatestls.thasteerertsiysetyeieeraduesieesaredesiredeathefollybaaaa:Fer4leepeyoratioox(IOO)%hera5P~e4sa4reactoreziyac@cineSIParcaneofNATQXEKiQÃALNQLRV~R@RSIRR5LRsh4rofSnayParQblaaafatyvalvulaparaeaaBXCsa,~-X~CseaLrelievingeayaeieyofallaafasyvalvaaParataxiaLSDSNIba.jheaea~4,2N.450A.rwIT~aaailemrelievingcapacityafanyaaeaafaeyvaL~SaLba./hearSS7,HO100PeterlLaagoNoaerenPLY@4hTrSII5aeyeinsfer4legeyaraeionCOOKNUCLXARPLANT~%GT2I3/471~g~ggggIo.Ig,134 INSGtTIThesafety@abc1sOPERABLEwfthaliftsettingof+3%aboutthen~~nalvalue.However,thesafetyvalveshallberesettothenoehnalvalue+1%wheneverfegctoutsfdethe+1%tolerance.
ATTACHMENT2toAEP:NRC:1169BPROPOSEDREVISEDTECHNICALSPECIFICATIONSPAGES
34.7PLANTSYSTEMS34.7e1TURBINECYCLE0SAFETYVALVESLIMITINGCONDITIONFOROPERATION3.7.1.1Allmainsteamlinecodesafetyvalvesassociatedwitheachsteamgeneratorshallbe'OPERABLE.APPLICABILITY:Modes1,2and3.ACTION:a.With4reactorcoolantloopsandassociatedsteamgeneratorsinoperationandwithoneormoremainsteamlinecodesafetyvalvesinoperable,operationinMODESl,2and3napproceedprovidedth,atwithin4hours,eithertheinoperablevalvei.srestoredtoOPERABLEstatusorthePowerRangeNeutronFluxHighSetpointtripisreducedperTable3.7-1;otherwise,beinatleastHOTSTANDBYwi.thinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.b.With3reactorcoolantloopsandassociatedsteamgeneratorsinoperationandwithoneormoremainsteamlinecodesafetyvalvesassociatedwithanoperatingloopinoperable,operationinMODE3mayproceedprovided,thatwithin4hours,eithertheinoperablevalveisrestoredtoOPERABLEstatusorthereactortripbreakersareopened;otherwise,beinCOLDSHUTDOWNwithinthenext30hours.c.TheprovisionsofSpecification3.0.4arenotapplicable.SURVEILLANCEREUIREMENTS4.7.1.1EachmainsteamlinecodesafetyvalveshallbedemonstratedOPERABLEinaccordancewithSpecification4.0.5andwithliftsettingsasshowninTable4.7-1.ThesafetyvalveshallberesettothenominalvalueflXwheneverfoundoutsidetheJ1Xtolerance.COOKNUCLEARPLANT-UNIT1AMENDMENTNO.XRO,464 TABLE4.7-1STEAMLINESAFETYVALVESPERLOOPIIVALVENUMBERa.SV-lAb.SV-1Bc.SV-2ASV-2Be.SV-3LIFTSETTING+34*1065psig1065psig1075psig1075psig1085psigORIFICESIZE16in.216in.216in.216in.216in.2*Theliftsettingpressureshallcorrespondtoambientconditionsofthevalveatnominaloperatingtemperatureandpressure.COOKNUCLEARPLANT-UNIT13/47-4AMENDMENTNO.4RO 34.7PLANTSYSTEMSBASES34.7.1TURBINECYCLE34.7.1.1SAFETYVALVESTheOPERABILITYofthemainsteamlinecodesafetyvalvesensuresthatthesecondarysystempressurewillbelimitedtowithin110Xofitsdesignpressureof1085psigduringthemostsevereanticipatedsystemoperationaltransient.ThemaximumrelievingcapacityisassociatedwithaturbinetripfromlOOXRATEDTHERMALPOWERcoincidentwithanassumedlossofcondenserheatsink(i.e.,nosteambypasstothecondenser).ThespecifiedvalveliftsettingsandrelievingcapacitiesareinaccordancewiththerequirementsofSectionIIIoftheASMEBoilerandPressureCode,1971Edition.ThesafetyvalveisOPERABLEwithaliftsettingof+3Kaboutthenominalvalue.However,thesafetyvalveshallberesettothenominalvalue+1Kwheneverfoundoutsidethe+1Xtolerance.Thetotalrelievingcapacityforallvalvesonallofthesteamlinesis17,153,800lbs/hrwhichisapproximately121percentofthetotalsecondarysteamflowof14,120,000lbs/hrat100XRATEDTHERMALPOWER.Aminimumof2OPERABLEsafetyvalvesperoperablesteamgeneratorensuresthatsufficientrelievingcapacityisavailablefortheallowableTHERMALPOWERrestrictioninTable3.7-1.STARTUPand/orPOWEROPERATIONisallowablewithsafetyvalvesinoperablewithinthelimitationsoftheACTIONrequirementsonthebasisofthereductioninsecondarysystemsteamflowandTHERMALPOWERrequiredbythereducedreactortripsettingsofthePowerRangeNeutronFluxchannels.Thereactortripsetpointreductionsarederivedonthefollowingbases:For4loopoperationXWhere:SP-reducedreactortripsetpointinpercentofRATEDTHERMALPOWERV-maximumnumberofinoperablesafetyvalvespersteamline1,2013~XTotalrelievingcapacityofallsafetyvalvespersteamline4,288,450lbs/hour.YMaximumrelievingcapacityofanyonesafetyvalve857,690lbs/hour(109)-PowerRangeNeutronFlux-HighTripSetpointfor4loopoperation.COOKNUCLEARPLANT-UNIT1B3/47-1AMENDMENTNO.
EMERGENCYCORECOOLINGSYSTEMSECCSSUBSYSTEMS-Tg>350FLIMITINGCONDITIONFOROPERATION3.5.2TwoindependentECCSsubsystemsshallbeOPERABLEwitheachsubsystemcomprisedof:a.OneOPERABLEcentrifugalchargingpump,b.OneOPERABLEsafetyinjectionpumpc~d.OneOPERABLEresidualheatremovalheatexchanger,OneOPERABLEresidualheatremovalpump,e.AnOPERABLEflowpathcapableoftakingsuctionfromtherefuelingwaterstoragetankonasafetyinjectionsignalandtransferringsuctiontothecontainmentsumpduringtherecirculationphaseofoperation.f.Allsafetyinjectioncross-tievalvesopen.APPLICABILITY:MODES1,2,and3.ACTION:a~WithoneECCSsubsysteminoperable,restoretheinoperablesubsystemtoOPERABLEstatuswithin72hoursorbeinHOTSHUTDOWNwithinthenext12hours.b.Withasafetyinjectioncross-tievalveclosed,restorethecross-tievalvetotheopenpositionorreducethecorepowerleveltolessthanorequalto3250MWwithinonehour.Specification3.0.4doesnotapply.C.XntheeventtheECCSisactnatedandinjectswaterintotheReactorCoolantSystem,aSpecialReportshallbepreparedandsubmittedtotheCommissionpursuanttoSpecification6.9.2within90daysdescribingthecircumstancesoftheactuationandthetotalaccumulatedactuationcyclestodate.COOKNUCLEARPLANT-UNIT23/45-3AMENDMENTNO.
34.7PLANTSYSTEMS34.7.1TURBINECYCLESAFETYVALVESLIMITINGCONDITIONFOROPERATION3.7.1.1AllmainsteamlinecodesafetyvalvesassociatedwitheachsteamgeneratorshallbeOPERABLE.APPLICABILITY:Modes1,2and3.ACTION:a.With4reactorcoolantloopsandassociatedsteamgeneratorsinoperationandwithoneormoremainsteamlinecodesafetyvalvesinoperable,operationinMODES1,2and3mayproceedprovided,thatwithin4hours,eithertheinoperablevalveisrestoredtoOPERABLEstatusorthePowerRangeNeutronFluxHighSetpointtripisreducedperTable3.7-1;otherwise,beinatleastHOTSTANDBYwithinthenext6hoursandinCOLDSHUTDOWNwithinthefollowing30hours.b.With3reactorcoolantloopsandassociatedsteamgeneratorsinoperationandwithoneormoremainsteamlinecodesafetyvalvesassociatedwithanoperatingloopinoperable,operationinMODE3mayproceedprovided,thatwithin4hours,eithertheinoperablevalveisrestoredtoOPERABLEstatusorthereactortripbreakersareopened;otherwise,beinCOLDSHUTDOWNwithinthenext30hours.TheprovisionsofSpecification3.0.4arenotapplicable.SURVEILLANCEREUIREMENTS4.7.1.1EachmainsteamlinecodesafetyvalveshallbedemonstratedOPERABLEinaccordancewithSpecification4.0.5andwithliftsettingsasshowninTable4.7-1.Thesafetyvalveshallberesettothenominalvalue+1Xwheneverfoundoutsidethe~1Xtolerance.COOKNUCLEARPLANT-UNIT23/47-1AMENDMENTNO.82, TABLE4.7-1STEAMLINESAFETYVALVESPERLOOPVALVENUMBERa.SV-1Ab.SV-1Bc.SV-2ASV-2Be.SV-3LIFTSETTING+34'1065psig1065psig1075psig1075psig1085psigORIFICESIZE16in.216in.2216in.216in.216in.*Theliftsettingpressureshallcorrespondtoambientconditionsofthevalveatnominaloperatingtemperatureandpressure.COOKNUCLEARPLANT-UNIT23/47-4AMENDMENTNO.
34.5EMERGENCYCORECOOLINGSYSTEMSBASES34.5.1ACCUMULATORSTheOPERABILITYofeachRCSaccumulatorensuresthatasufficientvolumeofboratedwaterwillbeimmediatelyforcedintothereactorcorethrougheachofthecoldlegsintheeventtheRCSpressurefallsbelowthepressureoftheaccumulators.ThisinitialsurgeofwaterintothecoreprovidestheinitialcoolingmechanismduringlargeRCSpiperuptures.Thelimitsonaccumulatorvolume,boronconcentrationandpressureensurethattheassumptionsusedforaccumulatorinjectioninthesafetyanalysisaremet.Theaccumulatorpoweroperatedisolationvalvesareconsideredtobe"operatingbypasses"inthecontextofZEEEStd.279-1971,whichrequiresthatbypassesofaprotectivefunctionberemovedautomaticallywheneverpermissiveconditionsarenotmet.Inaddition,astheseaccumulatorisolationvalvesfailtomeetsinglefailurecriteria,removalofpowertothevalvesisrequired.~IThelimitsforoperationwithanaccumulatorinoperableforanyreasonexceptan.isolationvalveclosedminimizesthetimeexposureoftheplanttoaLOCAeventoccurringconcurrentwithfailureofanadditionalaccumulatorwhichmayresultinunacceptablepeakcladdingtemperatures.Ifaclosedisolationvalvecannotbeimmediatelyopened,thefullcapabilityofoneaccumulatorisnotavailableandpromptactionisrequiredtoplacethereactorinamodewherethiscapabilityisnotrequired.34.5.2and34.5.3ECCSSUBSYSTEMSTheOPERABILITYoftwoindependentECCSsubsystemsensuresthatsufficientemergencycorecoolingcapabilitywillbeavailableintheeventofaLOCAassumingthelossofonesubsystemthroughanysinglefailureconsideration.EithersubsystemoperatinginconjunctionwiththeaccumulatorsiscapableofsupplyingsufficientcorecoolingtolimitthepeakcladdingtemperatureswithinacceptablelimitsforallpostulatedbreaksizesrangingfromthedoubleendedbreakofthelargestRCScoldlegpipedownward.Znaddition,eachECCSsubsystemprovideslongtermcorecoolingcapabilityintherecirculationmodeduringtheaccidentrecoveryperiod.Ifasafetyinjectioncross-tievalveisclosed,safetyinjectionwouldbelimitedtotwolinesassumingthelossofonesafetyinjectionsubsystemthroughasinglefailureconsideration.TheresultingloweredflowrequiresadecreaseinTHERMALPOWERtolimitthepeakcladtemperaturewithinacceptablelimitsintheeventofapostulatedsmallbreakLOCA.COOKNUCLEARPLANT-UNIT2B3/45-1AMENDMENTNO.
~'
34.7PLANTSYSTEMSBASES34.7.1TURBINECYCLE34.7.1.1SAFETYVALVESTheOPERABILITYofthemainsteamlinecodesafetyvalvesensuresthatthesecondarysystempressurewillbelimitedtowithin110%ofitsdesignpressureof1085psigduringthemostsevereanticipatedsystemoperationaltransient.Themaximumrelievingcapacityisassociatedwithaturbinetripfrom100%RATEDTHERMALPOWERcoincidentwithanassumedlossofcondenserheatsink(i.e.,nosteambypasstothecondenser).ThespecifiedvalveliftsettingsandrelievingcapacitiesareinaccordancewiththerequirementsofSectionZZIoftheASMEBoilerandPressureCode,1971Edition.ThesafetyvalveisOPERABLEwithaliftsettingof+3%aboutthenominalvalue.However,thesafetyvalveshallberesettothenominalvalue+1%wheneverfoundoutsidethe+1%tolerance.Thetotalrelievingcapacityofallsafetyvalvesonallofthesteamlinesis17,153,800lbs/hrwhichisatleast105percentofthemaximumsecondarysteamflowrateat100%RATEDTHERMALPOWER.Aminimumof2OPERABLEsafetyvalvespersteamgeneratorensuresthatsufficientrelievingcapacityisavailablefortheallowableTHERMALPOWERrestrictioninTable3.7-1.STARTUPand/orPOWEROPERATIONisallowablewithsafetyvalvesinoperablewithinthelimitationsoftheACTIONrequirementsonthebasisofthereductioninsecondarysystemsteamflowandTHERMALPOWERrequiredbythereducedreactortripsettingsofthePowerRangeNeutronFluxchannels.Thereactortripsetpointreductionsarederivedonthefollowingbases:For4loopoperationXWhere:spreducedreactortripsetpointinpercentofRATEDTHERMALPOWERmaximumnumberofinoperablesafetyvalvespersteamlinetotalrelievingcapacityofallsafetyvalvespersteamlineinlbs./hours=4,288,450maximumrelievingcapacityofanyonesafetyvalveinlbs./hour=857,690109PowerRangeNeutronFlux-HighTripSetpointfor4loopoperationCOOKNUCLEARPLANT-UNIT2B3/47-1AMENDMENTNO.82i434